bump play to 2.1.2 and cleanup
lots of cleanup.  tests broken.  tutorial broken.  DO NOT MERGE
List -> Vector
use lazy val for StocksActor
cleanup unused and wrong docs
switch to the twitter search proxy
now handles backing service failures
fix all tests
update the tutorial for the code updates
Merge pull request #4 from typesafehub/wip/overhaul

Overhaul To Cleanup a Bunch of Stuff